Exhibit 23.3

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in this Post-Effective Amendment No. 2 to the Registration Statement on Form S-1 (File No. 333-216820) for the United States Agriculture Index Fund, LP, a series of the United States Commodity Index Funds Trust (the “Trust”), of our report dated February 28, 2018 relating to the statements of financial condition as of December 31, 2017 and 2016 of United States Commodity Funds LLC included in the Annual Report on Form 10-K of the Trust for the year ended December 31, 2017, and to the reference to our Firm as “Experts” in the Prospectus, which is part of this Registration Statement.

/s/ BPM LLP                          

San Francisco, California

March 28, 2018